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kondor19780726 [428]

3 years ago

6

Which expression is equivalent to -2/5(15-20d+5c)

1 answer:

Nataly [62]3 years ago

3 0

Answer:

=

$- 2 \times 3 + 2 \times 4d - 2c \\ = - 6 + 8d - 2c$

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Solve the formula for the indicated variable.<br> T(r+s)=rs, for r<br> (Simplify your answer.)

yaroslaw [1]

Answer:

$R = \frac{-TS}{(T-S)}$

Step-by-step explanation:

First, distribute all terms

$T(R+S) =RS\\TR + TS =RS$

Get all terms with R onto the same side

$TR + TS = RS\\TR - RS = -TS$

Factor out the R

$R(T-S)=-TS$

Divide by (T-S) to isolate R

$R = \frac{-TS}{(T-S)}$

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